Re: [PATCH 6.6-rt 0/5] net: Backport backlog-NAPI threads to resolve PREEMPT_RT softirq warning in SMP flush

[Clark Williams <clrkwllms@kernel.org>]

On Tue, Oct 20, 2026 at 01:18:06AM +0800, Wen Yang wrote:
> 
> 
> Hi,
> 
> Thanks for pushing the rc, and for giving it time to soak before release.
> On your question about the v6.1 series - you're right, it is larger:
> 15 patches. That is mostly because 6.1.y does not carry the ten NAPI/RPS/
> defer_list prerequisites from v6.4-v6.9 that v6.6 already has, so they have
> to come along:
>     10  prerequisite NAPI/RPS/defer_list patches
>      4  the backlog-NAPI changes (the same set as the v6.6 series)
>      1  revert of the RT defer_work workaround
> 
> Only one of the 14 upstream patches needed a change beyond context: patch 06
> keeps raise_softirq_irqoff() instead of __raise_softirq_irqoff(), since
> 6.1-rt already carries 533824e6a0fb and the 2023 upstream text predates it.
> The other 13 are line-for-line identical, and patch 13's five hand-placed
> hunks are context only.
> 
> The code is unchanged since I posted it, so there is nothing new to send;
> please feel free to apply and test the series as posted.
> 
> https://lore.kernel.org/all/cover.1791912669.git.wen.yang@linux.dev/
> 
> 
> Thanks,
> Wen
> 

Meh, 15 patches doesn't suck. I'll try and get to that tonight or
tomorrow and see if we can have both v6.6-rt-next and v6.1-rt-next
soaking. 

Clark
-- 
The United States Coast Guard
Ruining Natural Selection since 1790